CPC Subgroup
B66F 3/18 actuated through worm gearings
Full Title
Devices, e.g. jacks, adapted for uninterrupted lifting of loads (mobile jacks of the garage type B66F5/00) > screw operated (B66F3/44 takes precedence; gearings F16H) > actuated through worm gearings
Top Applicants
Top 10 applicants by patent filingsfor class B66, 2013–2023, worldwide · Source: EPO PATSTAT
- INVENTIO CH 3,939
- OTIS ELEVATOR COMPANY US 3,810
- KONE CORPORATION FI 3,008
- MITSUBISHI ELECTRIC CORPORATION JP 2,333
- MITSUBISHI ELECTRIC CORPORATION 1,254
- HITACHI 1,195
- OTIS ELEVATOR COMPANY 1,065
- SGCC(STATE GRID CORPORATION OF CHINA) 961
- INVENTIO 828
- CROWN EQUIPMENT CORPORATION US 828